The engine oil drain plug on most Honda CR-Vs uses a 14mm hex head with M14 x 1.5 thread, but exact specs can vary by generation and engine, so verify for your specific model year.
The Honda CR-V has spanned multiple generations with different engines and service requirements. While the engine oil drain plug is commonly 14mm in head size and M14x1.5 in thread for many CR-Vs, there are variations across model years and transmissions. This article outlines the typical size and how to confirm the correct specification for your vehicle, along with practical steps to verify before you loosen or replace the plug.
Engine oil drain plug: typical size
For the engine oil pan, the standard across many CR-Vs is a 14mm hex head with a thread size of M14 x 1.5. That means a 14mm wrench/socket will usually fit the plug, and the threads are approximately 14 millimeters in diameter with a 1.5 millimeter pitch. However, there can be variations based on generation and engine type.
Variations by generation
While 14mm/M14x1.5 is common, some older or non-standard configurations may use different plugs. Always verify by checking your owner's manual or inspecting the current plug.
To verify the correct size for your specific CR-V, use these steps:
- Check the owner's manual or factory service manual for the exact specification for your model year and engine code.
- Inspect the existing drain plug: look for stamping on the head or on the plug itself, and test with a 14mm socket to see if it fits snugly.
- If in doubt, measure the head size with a caliper or use a thread gauge to determine the pitch and confirm M14 x 1.5.
- When replacing, use the OEM drain plug and gasket recommended for your vehicle’s model year and engine, and reuse or replace the copper gasket appropriately.
- Consult a Honda dealer or trusted online resources with your VIN to confirm the exact size if you plan a purchase before removing the plug.
Accurate verification helps avoid cross-threading, stripping, and leaks during oil changes.
Notes on other drain plugs
Other drain plugs on a Honda CR-V, such as for the transmission, coolant, or other fluids, can have different sizes and tools. Do not assume the engine oil plug size applies to other systems. Always refer to the specific service data for your model year and transmission type.
Summary
In brief, the engine oil drain plug on most Honda CR-Vs uses a 14mm hex head with an M14 x 1.5 thread, but exact specs vary by generation and engine. To be certain, check the owner's manual or service data, examine the plug on your vehicle, and consult a Honda dealer or service technician if needed. Always use the correct size tools and a new gasket when changing the oil to prevent leaks.